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| author | Even Rouault <even.rouault@spatialys.com> | 2021-11-07 20:07:26 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-11-07 20:07:26 +0100 |
| commit | fa8a542f40acba39b7ce3671a88cb2fcac79afb0 (patch) | |
| tree | 9779413c6b35460e9d39058537a3c5d84a17fd99 /src | |
| parent | 96910fc0bbfc20055cef50bf6e2da2774b652607 (diff) | |
| parent | 730b7b9e9f5bb35aa67e9e73830c92e70e0a26c9 (diff) | |
| download | PROJ-fa8a542f40acba39b7ce3671a88cb2fcac79afb0.tar.gz PROJ-fa8a542f40acba39b7ce3671a88cb2fcac79afb0.zip | |
Merge pull request #2928 from OSGeo/backport-2926-to-8.2
[Backport 8.2] DOC: Add warning in proj_as_proj_string about potential information loss with CRS
Diffstat (limited to 'src')
| -rw-r--r-- | src/iso19111/c_api.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/iso19111/c_api.cpp b/src/iso19111/c_api.cpp index 1b9d89c8..70f589b3 100644 --- a/src/iso19111/c_api.cpp +++ b/src/iso19111/c_api.cpp @@ -1589,6 +1589,11 @@ const char *proj_as_wkt(PJ_CONTEXT *ctx, const PJ *obj, PJ_WKT_TYPE type, * The returned string is valid while the input obj parameter is valid, * and until a next call to proj_as_proj_string() with the same input * object. + * + * \warning If a CRS object was not created from a PROJ string, + * exporting to a PROJ string will in most cases + * cause a loss of information. This can potentially lead to + * erroneous transformations. * * This function calls * osgeo::proj::io::IPROJStringExportable::exportToPROJString(). |